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nirvana33 [79]
2 years ago
15

Can i have help with this question please i don’t understand

Mathematics
2 answers:
Vinil7 [7]2 years ago
7 0

Answer:

Step-by-step explanation:

4x + 3y + x + 4y

= 4x + x + 3y + 4y

= 5x + 7y

4x + 3y + 2x - y

= 4x + 2x + 3y - y

= 6x + 2y

4x + 5y - ( x + 4y )

= 4x + 5y - x - 4y

= 4x - x + 5y - 4y

= 3x + y

2x - y + 3x + y

= 2x + 3x - y + y

= 5x + 0

= 5x

Law Incorporation [45]2 years ago
5 0

Answer:

See the picture I've attached...

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Step-by-step explanation:

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Answer:

See below for answers and explanations

Step-by-step explanation:

<u>Problem 1:</u>

A standard deck of cards contains 52 cards, consisting of 13 spades. If you select only one randomly, the probability of that occurring would be 13/52 or 1/4. Since there are only 26 red cards in a standard deck, then the probability of selecting a red card would be 26/52 or 1/2. Because the two events are independent of each other, their probabilities are multiplied. Therefore, the probability of selecting a spade, and then replacing it in hopes of drawing a red card is (1/2)(1/4) = 1/8.

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myrzilka [38]
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Answer:

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Step-by-step explanation:

The formula for annual compound interest, including principal sum, is:

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Where:

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n = the number of times that interest is compounded per year

t = the number of years the money is invested or borrowed for

Note that this formula gives you the future value of an investment or loan, which is compound interest plus the principal. Should you wish to calculate the compound interest only, you need this:

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andrew-mc [135]
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